diff --git a/agrest-docs-protocol/src/docs/asciidoc/protocol.adoc b/agrest-docs-protocol/src/docs/asciidoc/protocol.adoc
index 0831c08..d65231c 100644
--- a/agrest-docs-protocol/src/docs/asciidoc/protocol.adoc
+++ b/agrest-docs-protocol/src/docs/asciidoc/protocol.adoc
@@ -1,5 +1,7 @@
 :agrest-header: _chapters/header.html
 
+_Protocol Version 1.1_
+
 = Agrest Protocol
 
 include::_chapters/overview.adoc[]